I just installed one on mine and it works great, I upgraded from points ignition to electronic. I have the 6AL w/ the Blaster 2 coil (a must w/ the 6AL). FYI the only difference between the 6A and the 6AL is, the 6AL has a soft touch rev. limiter.
With the 6AL you will get: better cold starts (a friend of mine doesn't have to use the manuel chokes anymore), better faster starting all around, increased spark (thats a given hinse the name, MSD, Multiple Spark Discharge) and better gas milage (not much, If your concerned how much mpg you get).. Have Fun any help needed..shoot
71 Nissan Skyline GC10
L28 triple 40mm Solex